If you are the stand-on vessel in a crossing situation,you may take action to avoid collision by your maneuver alone. When may this action be taken?().
A:At any time you feel it is appropriate
B:Only when you have reached extremis
C:When you determine that your present course will cross ahead of the other vessel
D:When it becomes apparent to you that the give-way vessel is not taking appropriate action
出自:海船船员证